hello members new to the forum.

ok here's what I have, 03 f250 5.4 gas engine crank no start after running a while. What I do have when no start is I do have fuel pressure, I do have spark. What I don't have when it cranks but wont fire is I don't have communication with the scanner, the IAC motor buzzes and with my dvom hooked up it is grounded the IAC motor with 6 volts. If truck sits for about 5-10 min it will fire back up no problems.